Theresienstadt concentration camp, also referred to as Theresienstadt Ghetto, was established by the SS during World War II in the fortress and garrison city of Terezín (German name Theresienstadt), located in what is now the Czech Republic. During World War II it served as a Naziconcentration camp staffed in equal numbers by German Nazi guards and their ethnic Czech collaborators. Tens of thousands of Jews were murdered there and over 150,000 others (including tens of thousands of children) were held there for months or years, before then being sent to their deaths on rail transports to Treblinka and Auschwitz extermination camps in Poland, as well as to smaller camps elsewhere.Approximately 144,000 Jews were sent to Theresienstadt. Most inmates were Czech Jews. Some 40,000 originated from Germany, 15,000 from Austria, 5,000 from the Netherlands and 300 from Luxembourg. In addition to the group of approx. 500 Jews from Denmark, also Slovak and Hungarian Jews were deported to the ghetto. Some 1,600 Jewish children from Białystok, Poland, were deported to Auschwitz from Theresienstadt; none survived. About a quarter of the inmates (33,000) died in Theresienstadt, mostly because of the deadly conditions (hunger, stress, and disease, especially the typhusepidemic at the very end of war). About 88,000 were deported to Auschwitz and other extermination camps including Treblinka. At the end of the war, there were a mere 17,247 survivors. 15,000 children lived in the ghetto; Willy Groag, one of the youth care workers, mistakenly claimed after the war that only 93 survived. However, 242 children younger than 15 survived deportation from Terezín to the East, and 1566 children survived in the ghetto proper. Source: Wikipedia